<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="content-type" content="text/html"/>
	<meta name="author" content="lebachvu" />
	<title>Máy tính bỏ túi</title>
</head>

<body>
    <div>
        <form method="post" action="controller.php">
            Giá trị 1: <input type="text" name="var1"/><br />
            Giá trị 1: <input type="text" name="var2"/><br />
            <select name="method_v">
                <option value="cong">Cộng</option>                
                <option value="tru">Trừ</option>
                <option value="nhan">Nhân</option>
                <option value="chia">Chia</option>
            </select><br />
            <input type="submit" value="Đồng ý" name="sub_var"/>
        </form>
    </div>
</body>
</html>